-91.57% is the change from 498 to 42
Calculation steps:
[( 42 - 498 ) ÷ 498] x 100 = -91.57%
Formula
Percentage change = [(42 - 498) / 498] x 100
Subtract the new number by the original number
42 - 498 = -456
-456 ÷ 498 = -0.9156626506024096
-0.9156626506024096 x 100 = -91.57%